Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 83, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4733704
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Funding
- LANL's LDRD program [LDRD-20110585ER]
- LANL's MaRIE program
- LANL's Science Campaign program
- U.S. Department of Energy (DOE) [DE-AC52-06NA25396, DE-AC02-06CH11357]
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The highly transient nature of shock loading and pronounced microstructure effects on dynamic materials response call for in situ, temporally and spatially resolved, x-ray-based diagnostics. Third-generation synchrotron x-ray sources are advantageous for x-ray phase contrast imaging (PCI) and diffraction under dynamic loading, due to their high photon fluxes, high coherency, and high pulse repetition rates. The feasibility of bulk-scale gas gun shock experiments with dynamic x-ray PCI and diffraction measurements was investigated at the beamline 32ID-B of the Advanced Photon Source. The x-ray beam characteristics, experimental setup, x-ray diagnostics, and static and dynamic test results are described. We demonstrate ultrafast, multiframe, single-pulse PCI measurements with unprecedented temporal (<100 ps) and spatial (similar to 2 mu m) resolutions for bulk-scale shock experiments, as well as single-pulse dynamic Laue diffraction. The results not only substantiate the potential of synchrotron-based experiments for addressing a variety of shock physics problems, but also allow us to identify the technical challenges related to image detection, x-ray source, and dynamic loading. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4733704]
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